linux-kernel - Re: [PATCH v2 4/8] usb: chipidea: tegra: Rename UDC to USB

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Date:   Thu, 17 Dec 2020 14:36:44 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        Peter Chen <Peter.Chen@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Felipe Balbi <balbi@...nel.org>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Peter Geis <pgwipeout@...il.com>,
        Ion Agorria <ion@...rria.com>, linux-tegra@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/8] usb: chipidea: tegra: Rename UDC to USB

On Thu, Dec 17, 2020 at 12:40:03PM +0300, Dmitry Osipenko wrote:
> Rename all occurrences in the code from "udc" to "usb" and change the
> Kconfig entry in order to show that this driver supports USB modes other
> than device-only mode. The follow up patch will add host-mode support and
> it will be cleaner to perform the renaming separately, i.e. in this patch.
> 
> Tested-by: Matt Merhar <mattmerhar@...tonmail.com>
> Tested-by: Nicolas Chauvet <kwizart@...il.com>
> Tested-by: Peter Geis <pgwipeout@...il.com>
> Tested-by: Ion Agorria <ion@...rria.com>
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  drivers/usb/chipidea/Kconfig         |  2 +-
>  drivers/usb/chipidea/ci_hdrc_tegra.c | 78 ++++++++++++++--------------
>  2 files changed, 40 insertions(+), 40 deletions(-)
> 
> diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
> index 8bafcfc6080d..8685ead6ccc7 100644
> --- a/drivers/usb/chipidea/Kconfig
> +++ b/drivers/usb/chipidea/Kconfig
> @@ -53,7 +53,7 @@ config USB_CHIPIDEA_GENERIC
>  	default USB_CHIPIDEA
>  
>  config USB_CHIPIDEA_TEGRA
> -	tristate "Enable Tegra UDC glue driver" if EMBEDDED
> +	tristate "Enable Tegra USB glue driver" if EMBEDDED
>  	depends on OF
>  	depends on USB_CHIPIDEA_UDC
>  	default USB_CHIPIDEA
> diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
> index 10eaaba2a3f0..d8efa80aa1c2 100644
> --- a/drivers/usb/chipidea/ci_hdrc_tegra.c
> +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
> @@ -12,7 +12,7 @@
>  
>  #include "ci.h"
>  
> -struct tegra_udc {
> +struct tegra_usb {
>  	struct ci_hdrc_platform_data data;
>  	struct platform_device *dev;
>  
> @@ -20,15 +20,15 @@ struct tegra_udc {
>  	struct clk *clk;
>  };
>  
> -struct tegra_udc_soc_info {
> +struct tegra_usb_soc_info {
>  	unsigned long flags;
>  };
>  
> -static const struct tegra_udc_soc_info tegra_udc_soc_info = {
> +static const struct tegra_usb_soc_info tegra_udc_soc_info = {
>  	.flags = CI_HDRC_REQUIRES_ALIGNED_DMA,
>  };
>  
> -static const struct of_device_id tegra_udc_of_match[] = {
> +static const struct of_device_id tegra_usb_of_match[] = {
>  	{
>  		.compatible = "nvidia,tegra20-udc",

Do we perhaps also want to add a new tegra20-usb compatible string here
and deprecate the old one since this now no longer properly describes
the device.

In either case, this looks fine:

Acked-by: Thierry Reding <treding@...dia.com>

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